The exercise URL – [ Ссылка ]
Amazon SQS FIFO (First-In-First-Out) queues are designed to enhance messaging between applications when the order of operations and events is critical, or where duplicates can’t be tolerated. FIFO queues also provide exactly-once processing but have a limited number of transactions per second (TPS).
Amazon SNS FIFO Topic provides strict message ordering and de-duplicated message delivery to one or more subscribers.
Amazon SQS FIFO Queue and Amazon SNS FIFO Topic can be used together to design fan out messages along with ordered processing.
In this exercise, you use SQS, SNS and Lambda function to implement ordered processing of the fan out messages.
